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Question

A conducting current-carrying plane is placed in an external uniform magnetic field. As a result, the magnetic induction becomes equal to B1 on one side of the plane and to B2, on the other.
Determine the direction of the current in the plane in the case illustrated in above figure.

145277_4933210f9b2c49f1976d98ca6ff55213.png

A
clockwise
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B
counter clockwise
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C
spirally downward
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D
none of these
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Solution

The correct option is A clockwise
Make a screw rule with right hand and the direction of magnetic field is clockwise and hence direction of current in plane clockwise.
873316_145277_ans_82d5a6a0defb456aaa5577dd68cd177f.png

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